Ah, googling “Baaj Sambaa” and variants gave mainly North Indian hits, but I couldn’t get it to be an Indo-Aryan language. I’ve pondered Kusunda from western Nepal, but with the primarily Urdu influence I guess I’ll have to say Burushaski, even if it doesn’t sound like I imagined. And on the odd chance that my searchstring has anything to do with anything: Are these speakers Srinagar Burushi?